Nanotechnology deals with the study of nano sized particles. With the study of nano size particles, devices and composites, we will find ways to make stronger materials, detect diseases in the bloodstream, build extremely tiny machines, generatelight and energy and purify water. The most fascinating application of Nanotechnology isthat we can transmit information at the speed of light more efficiently through Photonicscommunication using Photons.The main objective of this paper is to implement Nano technology in opticalcommunication. Photonics communication speeds up telecommunications by replacingElectronics with Nano optics. Even though we have several communicatingmethods like Electronic communication, the main reason why we have to go for photonics is “Photons are light (mass less) and fast and electrons are heavy and slow andnever the twain shall meet”. In this Photonics communication photons play the prominentrole unlike in Electronics. The wave length of light is of a few hundred nano meters,where as our nano sized particles is of a few nano meters so that we can control the lightusing nano sized particles which is a very interesting thing in communication. In thiscommunication method we directly pass the message signal through light with outconverting into electrical or any other signals that is we are replacing the lazy electronswith more prominent photons.If we can implement nano technology in photonics communication we cantransmit information with in a fraction of a second for that matter with in no time. By justusing Pico joules of energy, we can switch parts in a few hundred Pico seconds of time.So this is both incredibly fast and also incredibly sparing in terms of energy usage. Nanotechnology is starting to take a close look at processing visual images to greatly improvethe information they can provide us that is Active image processing.

Manipulating Light with Crystals:

A

s our technology still seeks to increase the speed at which information travels,the scale gets global and we find the information super highway. Although theinformation super highway has often been used as just another name for the internet, italso describes the vast network of optical and electrical cables now used to carryinformation. Nano technology is set to take the next step and improve the highway again.This over complicated, axed-out scene could use some simplifying. Crystalsdesigned on the nano scale could replace electrical routers by directing the light itself instead of first converting it into electrical signals. The fiber-optic cables we use to carryinformation are potentially capable of transferring data at 10 to 40 Gbps. But mostelectrical routing occurs at less than 1% of that rate if we transfer to an all-optical router we could route most data packets in less than 1 trillionth of a second, pushing routingspeed till it can handle the full capacity of the fiber-optic cable network.Before we can look at the details of how such an all-optical router would work,we need to look at the nano- scale pieces of light that our crystals will be dealing with.These pieces are called

photons

and the science of manipulating such pieces of light isknown as

photonics.

Getting hooked on Photonics:

A photon is the smallest unit of light and doesn't really have a shape or size andmass. They are the building blocks of light and they travel normally in big groups. Theinformation super highway requires orderly photons for information transmission. So,orderly photons have to be made before they can be used as signal carriers. The trick is photons can't really carry anything (as they are weightless) so they are not the messenger,they are also the message. By varying the number of photons we ca form a code of highand low pulses. When we work at the nano scale, we rarely encounter large mobs of photons instead; we have to deal with a few photons at a time. If our nano-crystalaccidentally stops just one of the photons, we have immediately lost most of our information. Stopping light is ridiculously easy. Photons love to be absorbed by just